What would cause the spark plug boots to come off of the electrodes? I have denso iridiums with msd wires and the wries come off of the electrode a very little bit. Then I have to push them back down. After I seat them back over the electrodes, I can drive for 5 minutes and they're pushed back up again. Why?

Smash

 

prolly bad wires, or your spark plug seals on the valve cover are leaking causing pressure to push off the wires. i know this happened with mine, however it never stopped the car from driving, they just rised, i replaced them with OEM belkin ones, and they stay put